JAVA:代码中为空JSON，浏览器中填充JSON

Question

我正在尝试从 url 获取一个 json 对象:

http://www.alfanous.org/jos2?action=search&unit=aya&fuzzy=True&query=حم

但是，当我使用该 url 运行我的代码时，我得到一个空的 json，当我从浏览器请求 url 时，josn 被填充。

我的代码有什么问题？

    URL url = new URL("http://www.alfanous.org/jos2?action=search&unit=aya&fuzzy=True&query=حم");
    URLConnection conn = url.openConnection();
    InputStream is = conn.getInputStream();
    Scanner scan = new Scanner(is);
    while (scan.hasNextLine()) {
        System.out.println(scan.nextLine());
    }

我也试过了

    // Create URL object
    URL obj = new URL("http://www.alfanous.org/jos2?action=search&unit=aya&fuzzy=True&query=حم");

    // Communicate with the URL by HTTP
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();

    // optional default is GET
    con.setRequestMethod("GET");

    // add request header
     con.setRequestProperty("User-Agent", "Mozilla/5.0");

    // Getting response data
    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();
    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();
    System.out.println(response.toString());

Answer 1

解决方案是在将 url 字符串传递给 URL 构造函数之前对其进行编码。

String urlstring = "http://www.alfanous.org/jos2?action=search&unit=aya&fuzzy=True&query=حم";
URLEncoder.encode(urlstring, "UTF-8");
URL url = new URL(urlstring);

然后继续使用原始帖子中显示的先前代码。

URLConnection conn = url.openConnection();
InputStream is = conn.getInputStream();
Scanner scan = new Scanner(is);
while (scan.hasNextLine()) {
    System.out.println(scan.nextLine());
}

道德是..我应该在使用之前对 url 进行编码!